/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMPin.h
Returns the default value of the Pin as a string. Note that this value is computed based on the Pin's SubPins - so for example for a FVector typed Pin the default value is actually composed out of the default values of the X, Y and Z SubPins.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=RigVMPin) [FString](API\Runtime\Core\Containers\FString) GetDefaultValue() const